Question # 1

Which analysis is employed to convert a complex sound into notes.

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Fourier theorem

Milleman theorem

Lissajoes theorem

Demorgan's law

Distance between two consecutive nodes or antinodes is equal to.

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Lamda /4

Lamda

Lamda /2

2 lamda

In a galvanometer the enameled copper wire is wound on.

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An insulator

A non magnetic material

A magnetic material

A conductor

The half life of a given radioactive isotope is 10 years The original mass of the isotope is 12 g What mass of this isotope remains un decayed after 20 years.

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0.5 g

1.2 g

3.0 g

6.0 g

The SI unit of solid angle is

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Degree

Radian

Steradian

Candala

A body of mass 2 kg is suspended in a elevator by means of a spring The balance reads its weight when the elevator moves up with an acceleration of 5 m s-2 as.

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9.8 N

29. 6 N

26.5 N

30.5 N

One radian is equl to

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57.3 ^o

67.3 ^o

60 ^o

87.3 ^o

If a body of mass 'm' was released in a vacuum just above the surface of a planet of mass M and radius R what will be the gravitational acceleration.

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GmM/R

GM/R²

GM/R

GM/2R

Which of the following characteristics of a wave is independent of the others.

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speed

Frequency

Amplitude

Wavelength

Under steady state the temperature of a body

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Increase's with time

Decreases with time

Does not charge with time

None of the above

The resolving power of an instrument increases as the wavelength of light used decreases, the magnifying power will

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Remain the same

Increases

Decreases

Have no relation between the two

How solid hydrogen is obtained.

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By cascade process

By joule kelvin effect

By adiabatic expansion

Lowering temperature below melting point

When a perfect gas is supposed to expand freely in an isolated vessel the gas has undergone.

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An increase in pressure

An increase in temperature

A change in phase

A change in entropy

Under which of the following conditions current in a circuit is wattles.

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When inductance in the circuit is zero

When resistance in the circuit is zero

When current is alternating

When resistance and inductance both are zero

The SI unit of coefficient of viscosity of

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kg m s-1

kg m-1 s-1

kg ms -2

The term radius of gyration relates to.

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Moment of force

Moment of inertia

Law of gravitation

simple harmonic motion

Which of the given factors is increased in a step down transformer.

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Voltage

Current

Wattage

Resistance

If two gases have same reduced pressure volume and temperature it is according to

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Boyle's law

Charles law

Law of corresponding state

Zeroth law

The distribution of electrical charge i an object caused by teh influence of nearby charges is called.

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Electric potential

Electrostatic induction

Electric flux

Electric dipole moment

A device which converts electrical energy into mechanical energy is called.

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A.C generator

D.C. generator

Motor

Commutator

Para magnetism is.

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A distrotion effect

An orientation effect

A skin effect

A resistance

Which of the following statements concerning G and g is true.

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g is scalar white g is a vector

g is inversely proportional to the mass of the planet

g is independent of the mass of the planet

both G and g have the same units

Which of the following refers to the distance from crest to crest of a wave.

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Frequency

Wavelength

Amplitude

Period

Which of the following is a non contacting device that intercepts and measures thermal radiation.

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Thermometer

Pyrometer

Voltmeter

Lactometer

The efficiency of a diesel engine is about

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15% to 35 5

355 to 40%

45% to 655

505 to 65 %

Which of the following is a properly of a uniform gravitational field.

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If acts equally in all directions.

Its field strength is the same at all points with in it

the gravitational potential has the same value of all points with in it

It produces zero force on a stationary test mass placed in it.

The unit formed by combining the fundamental untis of length , mass and time.

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Absolute units

Practical units

Bse unit

Derived units

Which animal did Erwin Schrodinger contemplate using in his famous thought experiment.

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mouse

Cat

Dog

Rabbit

Pure silicon has valence electrons

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1

2

3

4

In electronegative waves the electric and magnetic fields are.

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Parallel to each other

Perpendicular to each other

antiparallel to each other

At an angle of 45 ^o to each other

The specific heat capacity of a substance is the amount of heat required to.

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Raise its temperature by 1 K

Raise the temperature of 1 kg of the substance by 1 K

Melt 1 kg of the substance

Boil 1 kg of the substance

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